Jan Mahammadpur Mahadeo is a village in Colgong tehsil in district of Bhagalpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Jan Mahammadpur Mahadeo was 188 which includes 105 males and 83 females. Jan Mahammadpur Mahadeo covers 24 ha area. Pincode of Jan Mahammadpur Mahadeo is 813203.